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  1. その他
  1. 部局別インデックス
  2. 理学部

南西諸島の沈み込みに伴い巨大地震が発生するのか? -海底地殻変動観測からの検証

http://hdl.handle.net/20.500.12000/17747
http://hdl.handle.net/20.500.12000/17747
b4d6b805-a150-405f-a7bf-2582a9baf551
名前 / ファイル ライセンス アクション
19340126seika.pdf 19340126seika.pdf
Item type デフォルトアイテムタイプ(フル)(1)
公開日 2010-08-05
タイトル
タイトル 南西諸島の沈み込みに伴い巨大地震が発生するのか? -海底地殻変動観測からの検証
言語 ja
作成者 中村, 衛

× 中村, 衛

ja 中村, 衛

Nakamura, Mamoru

× Nakamura, Mamoru

en Nakamura, Mamoru

アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
主題
言語 ja
主題Scheme Other
主題 地殻変動
言語 ja
主題Scheme Other
主題 海底変動
言語 ja
主題Scheme Other
主題 固体地球物理学
言語 ja
主題Scheme Other
主題 地震
言語 ja
主題Scheme Other
主題 津波
言語 ja
主題Scheme Other
主題 測地
言語 ja
主題Scheme Other
主題 自然災害
内容記述
内容記述タイプ Other
内容記述 科研費番号: 19340126
内容記述タイプ Other
内容記述 2007年度~2009年度科学研究費補助金(基盤研究(B))研究成果報告書
内容記述タイプ Other
内容記述 研究概要(和文):琉球海溝に固着域が存在するか否かを明らかにするため、中部琉球海溝で海底地殻変動観測を開始し、琉球海溝付近前孤側でのプレート間カップリングを検出する試みをおこなった。2年間の観測から、海底局群が沖縄本島に対して北西方向に7cm/yrで移動したことが明らかにった。予想される固着域の幅は約30-50kmである。このように琉球海溝の海溝軸付近には固着域が存在しプレート間カップリング領域が形成されていることが明らかになった。
内容記述タイプ Other
内容記述 研究概要(英文) : We have started the observation of sea floor crustal deformation to detect the inter-plate coupling in the central Ryukyu trench. Five campaign observations were carried out for the period from January 2008 to November 2009. The result shows that the benchmark moved to northwest direction for two years at a rate of 7 cm/yr. The estimated width of interplate coupling area is 30-50 km from the Ryukyu trench. The interplate coupling in the central Ryukyu Trench and tsunami earthquake (which occurred 300 km southwest of our site near the Ryukyu Trench) suggests that interplate coupling occurred up-dip of the seismogenic zone in the Ryukyu subduction zone.
内容記述タイプ Other
内容記述 研究報告書
出版者
言語 ja
出版者 中村衛
言語
言語 jpn
資源タイプ
資源タイプ research report
資源タイプ識別子 http://purl.org/coar/resource_type/c_18ws
出版タイプ
出版タイプ AM
出版タイプResource http://purl.org/coar/version/c_ab4af688f83e57aa
識別子
識別子 http://hdl.handle.net/20.500.12000/17747
識別子タイプ HDL
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